Pearls on resecting the TMJ chondrosarcoma: how i do it.

BACKGROUND: Chondrosarcoma of the head and neck is uncommon and Chondrosarcoma of the Temporomandibular Joint is exceedingly rare. We present a 67-year-old male with a large right TMJ Chondrosarcoma. METHODS: Patient underwent right segmental mandibulectomy with excision of TMJ tumor, lateral temporal bone resection and right infratemporal fossa resection with Vastus Lateralis flap reconstruction of facial defect. Steps and technical considerations are presented in the video attached. CONCLUSION: This case and video illustration show the technical feasibility of complete resection of Chondrosarcoma of the TMJ while preserving function of critical structures most importantly the ophthalmic branch of the facial nerve.

Validation study of WatchPat 200 for diagnosis of OSA in an Asian cohort.

To validate a wrist-worn portable device (WatchPat 200) to diagnose OSA in an Asian cohort. To evaluate its cost-effectiveness. Twenty patients with suspected OSA were recruited and had simultaneous polysomnography (PSG) and WatchPAT assessments concurrently within the hospital's sleep laboratory. The study population consisted of 18 male and 2 female patients, whose mean age was 39 (±16) years, mean BMI was 27.2 (±5.5) kg/m2, mean Epworth Sleepiness score was 8.55 (±4.8). The correlation between the AHI was assessed using Spearman's correlation coefficient and agreement was tested via the Bland Altman plot. Sensitivities and specificities were then applied to the various AHI groups. Spearman's coefficient was 0.94, which suggested that a very strong correlation between the AHI recorded by the WatchPat and the PSG. Bland-Altman plot showed good agreement with the AHI mean difference of about 4.23 with a slight tendency to overscore the AHI at the mild range of OSA and underscore the range at the severe end of OSA. The WatchPat showed 100% sensitivity when compared to PSG for mild OSA and is thus a good screening test for the undiagnosed general population. Furthermore, it also showed 100% specificity when compared to PSG for severe OSA suggesting that it is a good diagnostic test for people with a high suspicion of OSA. This facilitates a timelier diagnosis and a more economical approach with potential cost savings of up to $900 per patient.

Noninvasive follicular thyroid neoplasm with papillary-like nuclear features and the risk of malignancy in thyroid cytology: Data from Singapore.

INTRODUCTION: The impact of noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) on the risk of malignancy (ROM) in fine-needle aspiration cytology (FNAC) per The Bethesda System for Reporting Thyroid Cytopathology has not been well reported in Singapore. METHODS: We retrospectively identified 821 thyroid nodules with preoperative FNAC from 788 patients out of 1,279 consecutive thyroidectomies performed between January 2010 and August 2016 in a tertiary general hospital in Singapore. Possible cases of NIFTP were reviewed for reclassification and the impact of NIFTP on ROM was analysed. RESULTS: The incidence of NIFTP was 1.2% (10 out of 821). If NIFTP is considered benign, ROM in Bethesda I through VI were 8.6%, 3.5%, 26.3%, 20.0%, 87.7%, 97.0% versus 8.6%, 4.2%, 28.1%, 26.7%, 89.2% and 100% if NIFTP is considered malignant. Eight patients with NIFTP had follow-up of 15 to 110 months. One had possible rib metastasis as evidenced by I131 uptake but remained free of structural or biochemical disease during a follow-up period of 110 months. None had lymph node metastasis at presentation, nor locoregional or distant recurrence. CONCLUSION: Classifying NIFTP as benign decreased ROM in Bethesda II through VI, but the benignity of NIFTP requires more prospective studies to ascertain. The impact of NIFTP on ROM in our institution also appears to be lower than that reported in the Western studies.

Laryngeal gout mimicking chondrosarcoma with concurrent longus colli tendinitis.

A 42-year-old man with multiple comorbidities, including gout, presented to the emergency department with severe odynophagia for 4 days with intermittent dysphagia for 1-2 months. A CT scan of the neck showed right longus colli tendinitis and partially calcified excrescences from the right thyroid cartilage which raised suspicion of a cartilaginous tumour. He underwent an MRI scan of the neck to better evaluate the thyroid cartilage findings, which showed a heterogeneous mass suspicious for a chondroid tumour. He then underwent a positron-emission tomography-CT scan which showed a fluorodeoxyglucose-avid mass containing foci of calcification involving the right thyroid cartilage and adjacent strap muscle, with high standardised uptake value of 7.7. He subsequently underwent a CT-guided biopsy and an open biopsy of the right thyroid cartilage, and the results revealed gouty tophi. To our knowledge, this is the first reported case of laryngeal gout with longus coli tendinitis, both of which are rare conditions.

Subglottic extramedullary plasmacytoma with light chain multiple myeloma masquerading as adult-onset asthma.

Extramedullary plasmacytoma (EMP) arises outside the bone marrow and can be associated with multiple myeloma (MM). A 55-year-old gentleman, who presented with dyspnea and expiratory wheeze, was diagnosed and treated for asthma. A subsequent relapse 6 months later prompted an Otolaryngology consult. Preliminary findings showed a benign-looking nodular lesion at the subglottis. Work-up at our institution revealed an Fludeoxyglucose (FDG) avid left subglottic lesion with multiple bone metastases on a Positron Emission Tomography / Computed Tomography (PET/CT). The patient underwent a panendoscopy and laser excision of the subglottic lesion with subglottic jet ventilation. Histology showed an EMP. Further work-up revealed the presence of kappa light chain MM with adverse cytogenetics. Patient was treated systemically with lenalidomide, bortezomib, and dexamethasone for four cycles with rapid improvement in his symptoms. We review the literature about EMP of the subglottis with MM. We present the first case of subglottic laryngeal EMP with MM managed via CO2 laser excision.